CN202900039U - Hole bottom power drilling tool adopting magnetic transmission technology - Google Patents
Hole bottom power drilling tool adopting magnetic transmission technology Download PDFInfo
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- CN202900039U CN202900039U CN2012202879185U CN201220287918U CN202900039U CN 202900039 U CN202900039 U CN 202900039U CN 2012202879185 U CN2012202879185 U CN 2012202879185U CN 201220287918 U CN201220287918 U CN 201220287918U CN 202900039 U CN202900039 U CN 202900039U
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Abstract
A hole bottom power drilling tool adopting a magnetic transmission technology comprises a motor section, a magnetic speed reducer, a magnetic supporting section and the like, wherein all the parts are connected through a connecting mechanism. The permanent magnets are axially arranged with the soft magnets and evenly distributed along the circumference, the magnetic polarities of the adjacent permanent magnets are opposite, the speed reduction transmission is realized by the action of the magnetic force, and the transmission ratio can be changed by changing the number of the permanent magnets and the soft magnets. A plurality of magnetic bearings are arranged in the magnetic bearing joint to bear load, each magnetic bearing comprises a magnetic bearing inner ring and a magnetic bearing outer ring, axial magnetization is adopted, the magnetization directions are opposite, inclined planes are arranged on the magnetic bearing inner rings and the magnetic bearing outer rings, and the inclined planes correspond to each other and have certain gaps. The utility model discloses a magnetic force decelerator and magnetic bearing possess contactless, do not have wearing and tearing, longe-lived working property.
Description
Technical field
The present invention relates to power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology, belong to the probing fields such as oil, geology.
Background technology
Needs along with resources exploration and earth science research, deep hole and superdeep holes probing workload increase day by day, and traditional ground installation drives the rotating type of drive of drilling rod owing to being subject to the restriction of drilling rod intensity, and efficiency of breaking rock is low, drilling accident easily occurs, and is difficult to satisfy the deep drilling requirement.Power drilling tool adopts the drilling medium such as drilling fluid as power at the bottom of the hole, directly drives drilling tool work at the bottom of the hole, does not rely on the drilling rod transferring power, and drilling efficiency is high, drilling accident is few, is widely used in deep hole and superdeep holes are drilled.
Power drilling tool is by being that power motor and the transmission device that transmits rotating speed and moment of torsion form at the bottom of the hole of mechanical energy with other Conversion of Energies at the bottom of the hole.Power drilling tool can be divided into helicoid hydraulic motor and turbodrill at the bottom of the hole commonly used, and helicoid hydraulic motor mainly is comprised of screw motor joint, universal joint, cartridge etc., and turbodrill mainly is comprised of turbine section and cartridge etc.At present for reduce power drilling tool at the bottom of the hole particularly turbodrill rotating speed and improve operation torque, developed into the power drilling tool stage at the bottom of the hole of additional deceleration device, and obtained good effect.But the researcher finds at the bottom of the existing hole drive technology of the power drilling tool part that also comes with some shortcomings in application process.
At first, the cartridge of power drilling tool adopts contact usually at the bottom of the hole multi-joint thrust ball bearing, PDC bearing adopt the carbide alloy bearing as alignment bearing as thrust bearing, and drilling fluid is as the lubrication and cooling medium.Multi-joint thrust ball bearing, PDC bearing, carbide alloy alignment bearing are worked in the drilling fluid that contains the solid phase abrasive particle for a long time, and working condition is abominable, and working life is short.The same with other contact bearing, the main failure forms of multi-joint thrust ball bearing, PDC bearing, carbide alloy alignment bearing is by the wearing and tearing that cause after the adhesive wear, fragmentation and impacts tearing of producing, the PDC bearing also can be because of bottom hole temperature (BHT) high and friction over-heating erosion occurs.The problems such as in addition, power drilling tool ubiquity starting torque is large at the bottom of the hole of employing contact bearing, transmission power is low.The deficiency of power drilling tool contact bearing and defective have restricted development and the application of power drilling tool at the bottom of the hole at the bottom of the existing hole.
Known turbodrill is because rubber element is few, and temperature resistant capability is strong, hole quality good, has been subject to numerous drillers author's attention.At present, compliance for power drilling tool at the bottom of the raising hole, particularly improve the compliance of turbodrill, for specific stratum, adopted the design of additional deceleration device at drilling tool structure, its deceleration device adopts the planetary gear speed-reduction structure, for reducing the working speed of turbodrill, improves the output torque of turbodrill.But, there are many deficiencies in the epicyclic reduction gear unit that adopts now: at first, the shock and vibration situation owing to occuring in epicyclic reduction gear unit in the Gear Contact transmission process, be subject to simultaneously the erosion of the materials such as landwaste, the phenomenons such as spot corrosion, wearing and tearing will occur in gear, along with fatigue failure must occur for the passing of working time; Secondly, the oil lubrication structure is generally adopted in the inside of epicyclic reduction gear unit, lubricant medium adopts lubrication oil usually, and need to adopt necessary oil storage sealing system, generally there is rubber sealing element in this oil storage sealing system, easily lost efficacy at hot environment lower seal element and lubricant medium, along with minimizing or the inefficacy of lubricant medium, with the inefficacy of further accelerating gear deceleration device; The 3rd, leak for avoiding lubricant medium, also need the design pressure compensation arrangement, therefore the usually existence delay of this kind device is difficult to avoid lubricant medium to leak or drilling fluid is invaded; The 4th, owing to limited by bore diameter, the bulk of epicyclic reduction gear unit is limited, therefore is difficult to improve planetary gear intensity and life-span by improving physical dimension, and the too high gear that also can cause of moment of torsion destroys; The 5th, in order to improve gearratio, need to adopt the multi-stage planetary gear kind of drive, the length of deceleration device increases, and the structure more sophisticated is to the also significantly improve of requirement of lubricant medium, structural strength.
The magnetic drives technology is the basic theories with modern magnetics, uses the magneticaction that permanent-magnet material or electromagnet produce, a kind of new technology of coming realizable force or torque (power) noncontact to transmit.Along with the application of novel permanent magnetic material and the improvement of the aspects such as structure design and technique, significantly expanded the application of magnetic drives technology, equipment and the devices such as reaction stirred tank, vacuum equipment, high-speed machine tool, tappet gear, adopted widely the magnetic drives technology, but this technology at present at the bottom of the hole power drilling tool field also lack successful application.
Therefore, studying power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology, solve power drilling tool Problems Existing at the bottom of the hole, is the probing industry in the urgent need to one of work of carrying out.
Summary of the invention
In order to solve the multi-joint thrust ball bearing of power drilling tool at the bottom of the existing hole, the PDC bearing, the contact bearing wears such as carbide alloy alignment bearing are serious, life-span is short, starting torque is high, the problems such as energy loss is large, overcome power drilling tool epicyclic reduction gear unit complex structure at the bottom of the existing hole, fragile, the short deficiency that waits of life-span, the invention provides power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology, the magneticaction that utilizes permanent-magnet material or electromagnet to produce, the performance magnetic drives is contactless, operating characteristic without wearing and tearing, use the non-contact magnetic force bearing to replace the multi-joint thrust ball bearing of contact, the PDC bearing, the carbide alloy alignment bearing, the epicyclic reduction gear unit of power drilling tool at the bottom of the use non-contact type magnetic deceleration device replacement hole, turbodrill epicyclic reduction gear unit particularly, improve working life and the performance of the transmission mechanisms such as bearing and deceleration device, with bulk life time and the effect of power drilling tool at the bottom of the raising hole.
The technical solution adopted for the present invention to solve the technical problems is: power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology is made of motor joint, magnetic speed device, magnetic supporting joint etc.The power drilling tool upper end is threaded with the top rod column combination by tool joint at the bottom of described a kind of hole of adopting the magnetic drives technology.Screw motor, turbine motor or the vane type motors etc. of described motor joint for being driven by drilling mediums such as drilling fluids also comprise and adopt power-actuated electro-motor.Described motor joint upper end is connected with the tool joint lower end, for lower drilling tool provides power.Described magnetic speed device upper end is connected with described motor joint lower end, and its purpose is to change motor joint output shaft movement velocity, changes simultaneously its operation torque to adapt to the job requirement of Different Strata and boring tool.Described magnetic supporting joint upper end is connected with described magnetic speed device lower end, and radial and axial load can be born, be transmitted to the inner magnetic bearing group that is provided with a plurality of magnetic bearings compositions of described magnetic supporting joint.The boring tools such as described magnetic supporting joint lower end and drill bit are connected, and the boring tools such as driving drill bit break rock and creep into.
The axle head of described motor joint, magnetic speed device, magnetic supporting joint connects by bindiny mechanism, described bindiny mechanism is that spline coupling form or other possess the connected mode of said function, described spline coupling allows the axial displacement in the certain limit, therefore can in transmitted power and moment of torsion, avoid Axial impact Load, adopt simultaneously the type of attachment of spline coupling to be convenient to dismounting, the combination of associated components.The shell of described tool joint, motor joint, magnetic speed device, magnetic supporting joint is threaded connection, axial load can be delivered on the magnetic bearing group that a plurality of magnetic bearings form by upper drilling string combination by above-mentioned connection, and is delivered on the boring tool such as drill bit.
Described magnetic speed device is comprised of half a coupler and the lower contact of magnetic speed device under half a coupler, the top connection of magnetic speed device, magnetic force axle, magnetic speed device output shaft, soft magnetic bodies, permanent magnet, magnetic speed crust of the device, magnetic bearing, the magnetic speed device on the magnetic speed device.Half a coupler is connected with the lower half a coupler of spline form and motor joint on the described magnetic speed device, and half a coupler lower end and magnetic force axle are threaded connection on the described magnetic speed device.The magnetic force axle of described magnetic speed device is provided with the permanent magnet of some axial settings, described magnetic speed device output shaft is provided with the soft magnetic bodies of some axial settings, described magnetic speed crust of the device is provided with the permanent magnet of some axial settings, described permanent magnet and soft magnetic bodies distribute along even circumferential, magnetic polarity is opposite between the adjacent permanent magnet, and the quantity that changes permanent magnet and soft magnetic bodies can change gearratio.Described permanent magnet is identical with soft magnetic bodies length.Permanent magnet on permanent magnet on the described magnetic force axle and the described magnetic speed crust of the device and the soft magnetic bodies on the magnetic speed device output shaft interact, and drive magnetic speed device output shaft rotation.By changing the quantity of permanent magnet and soft magnetic bodies, the gearratio of capable of regulating magnetic speed device, and corresponding power and the moment of torsion that transmits of change.
Described magnetic supporting joint is comprised of the upper half a coupler of magnetic supporting joint, the top connection of magnetic supporting joint, magnetic supporting joint main shaft, outer regulating sleeve, magnetic bearing, inner washer, outer washer, magnetic supporting joint shell and lower lock sleeve.Described magnetic supporting joint main shaft lower end is connected by boring tools such as screw thread and drill bits.
Preferably, described magnetic bearing is comprised of magnetic bearing inner ring and magnetic bearing outer ring, magnetic bearing inner ring and magnetic bearing outer ring all adopt axial charging and magnetizing direction opposite, respectively be provided with the inclined-plane on magnetic bearing inner ring and the magnetic bearing outer ring, mutually corresponding between the inclined-plane, and certain gap is arranged, drilling fluid can pass through in this space, and these parts are cooled off and enter in next element.
Preferably, the motor joint is turbine motor or screw motor.
Preferably, the quantity of motor joint is 1-3.
Preferably, described magnetic force axle, magnetic speed device output shaft and magnetic speed crust of the device are formed by the non-magnetic material manufacturing.
Preferably, the magnetic bearing inner ring of described magnetic bearing and magnetic bearing outer ring are formed by the permanent-magnet material manufacturing.
Preferably, described permanent-magnet material is rare earth SmCo permanent-magnet material and the Nd-Fe-Bo permanent magnet material of high energy product.
The invention has the beneficial effects as follows: 1, the magnetic drives technology has the characteristics such as machinery-free contact, nothing friction, nothing wearing and tearing, can avoid occuring mechanical fatigue failure, long working life, be not rigidly connected owing to initiatively not existing between magnetic element and the driven magnetic element simultaneously, directly do not transmit motion, can avoid vibrating or the transmission of impact load, realize the even running of transmission device, possess good stability; 2, the anti-environment capacity of magnetic element is strong, can work under-253 ℃ to 450 ℃ limiting temperature, and calorific value is little, can satisfy hot environment requirement at the bottom of the hole; 3, magnetic speed device and magnetic bearing utilize the characteristic in magnetic field itself to carry out work, and efficient is high, and energy consumption is low; 4, power drilling tool is without sealing mechanism at the bottom of the hole of described employing magnetic drives technology, and without rubber element, the dependence drilling medium is lubricated workpiece and cools off, and is simple in structure; 5, adopt the magnetic drives technology can improve working life and the stability of power drilling tool at the bottom of the hole, reduce the number of times that makes a trip, promote hole quality, can improve rate of penetration, reduce drilling cost.
Description of drawings
Fig. 1 is the structural representation of power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology of the present invention.
Fig. 2 is the overall structure sectional drawing of the embodiment one of power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology of the present invention.
Fig. 3 is the A-A sectional structure chart of Fig. 2.
Fig. 4 is the structural representation of magnetic bearing.
Fig. 5 is the overall structure sectional drawing of the embodiment two of power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology of the present invention.
A. tool joint among Fig. 1, B. motor joint, C. magnetic speed device, D. magnetic supporting joint
1. motor top connections, 2. half a coupler on the motor, 3. motor spindle among Fig. 2,4. outer regulating sleeve, 5. turbine stator, 6. turbine rotor, 7. magnetic bearing, 8. motor case, 9. half a coupler under the motor, 10. motor lower contact, half a coupler on the 11. magnetic speed devices, 12. magnetic speed device top connections, 13. the magnetic force axle, 14. permanent magnets, 15. magnetic speed device output shafts, 16. soft magnetic bodies, 17. permanent magnets, 18. magnetic speed crusts of the device, 19. magnetic bearing, 20. magnetic bearings, 21. magnetic means lower contacts, 22. half a coupler under the magnetic speed device, 23. the upper half a coupler of magnetic supporting joint, the top connection of 24. magnetic supportings joint, 25. magnetic supportings joint main shaft, 26. outer regulating sleeve, 27. magnetic bearing, 28. inner washers, 29. outer washers, 30. magnetic supporting joint shell, 31. times lock sleeves.
32. magnetic bearing outer rings among Fig. 4,33. magnetic bearing inner rings.
34. screw rotors among Fig. 5,35. elastomer stators such as wall thickness such as grade, 36. pre-outline stator shells, 37. universal drive shafts, 38. universal drive shaft shells.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, below in conjunction with accompanying drawing embodiment of the present invention is specifically described.Be illustrated in figure 1 as a kind of structural representation of power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology of the present invention, mainly comprise motor joint B, magnetic speed device C and magnetic supporting joint D, power drilling tool is threaded with the top rod column combination by tool joint A at the bottom of described a kind of hole of adopting the magnetic drives technology.
Embodiment one:
Be illustrated in figure 2 as the overall structure sectional drawing of the embodiment one of power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology of the present invention, its motor joint B is turbine motor, and drilling tool comprises motor top connection 1, half a coupler 2 on the motor, motor spindle 3, outer regulating sleeve 4, turbine stator 5, turbine rotor 6, magnetic bearing 7, motor case 8, half a coupler 9 under the motor, motor lower contact 10, half a coupler 11 on the magnetic speed device, magnetic speed device top connection 12, magnetic force axle 13, permanent magnet 14, magnetic speed device output shaft 15, soft magnetic bodies 16, permanent magnet 17, magnetic speed crust of the device 18, magnetic bearing 19, magnetic bearing 20, magnetic speed device lower contact 21, half a coupler 22 under the magnetic speed device, the upper half a coupler 23 of magnetic supporting joint, the top connection 24 of magnetic supporting joint, magnetic supporting joint main shaft 25, outer regulating sleeve 26, magnetic bearing 27, inner washer 28, outer washer 29, magnetic supporting joint shell 30, lower lock sleeve 31.
Described turbine motor is comprised of half a coupler 9, motor lower contact 10 under half a coupler 2, motor spindle 3, outer regulating sleeve 4, turbine stator 5, turbine rotor 6, magnetic bearing 7, motor case 8, the motor on motor top connection 1, the motor.Wherein said motor top connection 1 top and tool joint A are threaded connection, described motor top connection 1 below and described motor case 8 are threaded connection, half a coupler 2 is threaded connection with motor spindle 3 on the motor, multistage turbine stator 5 and turbine rotor 6 alternate being installed on the motor spindle 3, be spaced a distance simultaneously the concentricity that a magnetic bearing 7 is used for calibration motor spindle 3 and motor case 8 is installed, half a coupler 9 is threaded connection under motor spindle 3 belows and the motor, and motor case 8 belows and motor lower contact 10 are threaded connection.Half a coupler 2 upper ends are internal spline shaft coupling form on the described motor, and half a coupler 9 lower ends are external splines shaft coupling form under the described motor, and a plurality of motor joint B can connect mutually by above-mentioned bindiny mechanism, improve service behaviour.
Described motor lower contact 10 and described magnetic speed device top connection 12 and described magnetic speed crust of the device 18 be connected magnetic speed device lower contact 21 and be connected successively by screw thread.Half a coupler 9 lower ends are internal spline shaft coupling form under the motor, and half a coupler 11 upper ends are external splines shaft coupling form on the described magnetic speed device, and both pass through spline joint.The lower end of half a coupler 11 and described magnetic force axle 13 are threaded connection on the described magnetic speed device, along even circumferential permanent magnet 14 is installed on the outer wall of described magnetic force axle 13, the inwall of described magnetic speed crust of the device 18 is equipped with permanent magnet 17 along even circumferential, on the outer wall of described magnetic speed device output shaft 15 soft magnetic bodies 16 is installed.Half a coupler 22 upper ends are threaded connection under described magnetic speed device output shaft 15 belows and the magnetic speed device, and the lower end of half a coupler 22 is internal spline shaft coupling form under the magnetic speed device.
Described magnetic speed device lower contact 21 is threaded connection with the top connection 24 of described magnetic supporting joint, and described magnetic supporting joint top connection 24 is threaded connection successively with described magnetic supporting joint shell 30 and described lower lock sleeve 31.Described upper half a coupler 23 lower ends of magnetic supporting joint and described magnetic supporting joint main shaft 25 are threaded connection, on the outer wall of described magnetic supporting joint main shaft 25 boss is arranged, described a plurality of magnetic bearings 27 are installed successively, be provided with outer regulating sleeve 26, inner washer 28 and outer washer 29 therebetween, magnetic bearing can be separated, and the distance between each part of capable of regulating, described magnetic bearing is pressed on the outer wall of magnetic supporting joint main shaft 25.There is screw thread the lower end of described magnetic supporting joint main shaft 25, can be connected with the boring tool such as drill bit to carry out probing work.
Fig. 3 is the A-A cross-sectional view of Fig. 2, is depicted as the structure of described magnetic speed device.Along even circumferential permanent magnet 14 is installed on the outer wall of described magnetic force axle 13, magnetic polarity is opposite between the adjacent permanent magnet 14, the inwall of described magnetic speed crust of the device 18 is equipped with permanent magnet 17 along even circumferential, magnetic polarity is opposite between the adjacent permanent magnet 17, along even circumferential soft magnetic bodies 16 is installed on the outer wall of described magnetic speed device output shaft 15, described magnetic force axle 13 and magnetic speed device output shaft 15 and magnetic speed crust of the device 18 adopt the manufacturing of high-intensity non-magnetic material, described permanent magnet 14, soft magnetic bodies 16 is identical with permanent magnet 17 length, selects corresponding quantity according to needed gearratio.
Be illustrated in figure 4 as the structural representation of magnetic bearing 19, magnetic bearing 20, magnetic bearing 27.Described magnetic bearing is comprised of magnetic bearing inner ring 32, magnetic bearing outer ring 33, and described magnetic bearing inner ring 32 has an inclined-plane, and there is an inclined-plane described magnetic bearing outer ring 33, and two mutual correspondences in inclined-plane also have certain gap.Described magnetic bearing inner ring 32 and described magnetic bearing outer ring 33 all adopt axial charging and magnetizing direction opposite, described magnetic bearing 19, magnetic bearing 20, magnetic bearing 27 possess radially righting and axial thrust function simultaneously, and can bear radially and axial load.Described magnetic bearing 19, described magnetic bearing 20, described magnetic bearing 27 structural principles are identical.
Magnetic bearing possesses various embodiments, its performance changes with the inclined-plane of magnetic bearing outer ring 33 and the angle angle variation of magnetic bearing axis according to the magnetic bearing inner ring 32 of magnetic bearing, when bevel angle is 0 °, be radially alignment bearing of magnetic force this moment, when bevel angle is 90 °, be the magnetic force axial thrust bearing.
Before probing work begins, at first will adopt the hole of magnetic drives technology at the bottom of the power drilling tool upper end be connected with drilling rod, the lower end is connected with coring tool or drill bit, and is sent at the bottom of the hole.In drilling process, drilling fluid the heart channel of Hang-Shaoyin motor top connection 1 in drilling rod enters in the annular space that motor joint shell 8 and motor spindle 3 form and promotes turbine rotor 6 rotations, turbine rotor 6 drives motor spindle 3 rotations, and drives 13 revolutions of magnetic force axle by the spline joint of half a coupler 11 on half a coupler under the motor 9 and the magnetic speed device.Magnetic force axle 13 is the mode by magnetic drives in rotating process, drive 15 rotations of magnetic speed device output shaft, and by spline joint transmitting torque and the rotating speed of half a coupler under the magnetic speed device 22 with the upper half a coupler 23 of magnetic supporting joint, the upper half a coupler 23 of magnetic supporting joint drives 25 rotations of magnetic supporting joint main shaft, and the broken rock of magnetic supporting joint main shaft 25 rotary actuation coring tools or bit creeps into.
Drilling fluid enters the annular space that motor case 8 and motor spindle 3 form by motor top connection 1, then enter the annular space between the half a coupler 11 and magnetic speed device top connection 12 on the magnetic speed device, the part drilling fluid enters in the annular space between magnetic force axle 13 and the magnetic speed device output shaft 15, the magnetic bearing 19 of flowing through enters the inside of magnetic speed device output shaft 15, the part drilling fluid enters in the annular space between magnetic speed device output shaft 15 and the magnetic speed crust of the device 18, and it is inner that the magnetic bearing 20 of flowing through enters into the magnetic supporting joint.The drilling fluid half a coupler 22 under the magnetic speed device that flows out from magnetic speed device output shaft 15 centers flow in the upper half a coupler 23 of magnetic supporting joint, and most of drilling fluid enters into the inside of magnetic supporting joint main shaft 25 and flows to the boring tool such as drill bit along the passage at upper half a coupler 23 centers of magnetic supporting joint.The fraction drilling fluid flows out drilling tool after the magnetic bearing group that the magnetic bearing 27 of flowing through forms in the inclined hole inflow magnetic supporting joint main shaft 25 and the annular space between the magnetic supporting joint shell 30 of the upper half a coupler 23 of magnetic supporting joint.
In the course of the work, the pressure of the drill is delivered to motor top connection 1 by drilling rod and is delivered on the motor case 8, be delivered on the magnetic bearing 27 along motor lower contact 10, magnetic speed device top connection 12, magnetic speed crust of the device 18, magnetic speed device lower contact 21, the top connection 24 of magnetic supporting joint, outer regulating sleeve 26 successively, magnetic bearing 27 to the boss of magnetic supporting joint main shaft 25, finally is applied to load transfer on the boring tool such as drill bit.
Preferably, described permanent magnet 14, soft magnetic bodies 16 all have the shell of Anti-erosion wearing and tearing to protect with the outside of permanent magnet 17.
Embodiment two:
As shown in Figure 5, adopt the structural representation of power drilling tool embodiment two at the bottom of the hole of magnetic drives technology for patent of the present invention is a kind of.The 26S Proteasome Structure and Function of the present embodiment and above-described embodiment one is basic identical, and therefore identical parts represent with identical label, and no longer repeat to give unnecessary details.The present embodiment and above-described embodiment one difference are, described motor joint B is for waiting wall-thickness screw motor, described wait the wall-thickness screw motor by screw rotor 34, etc. wall thickness elastomer stator 35, pre-outline stator shell 36 form, its below is connected with universal drive shaft 37 and universal drive shaft shell 38.The below of screw rotor 34 is connected with universal drive shaft 37, and universal drive shaft 37 belows are connected with half a coupler 9 under the motor, and half a coupler 9 belows are connected with half a coupler 11 on the magnetic speed device under the motor.Pre-outline stator shell 36 is connected with universal drive shaft shell 38 by screw thread, and universal drive shaft shell 38 is connected with magnetic speed device top connection 12.
The above only is the schematic preferred embodiment of the present invention, is not to limit scope of the present invention.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (8)
1. power drilling tool at the bottom of the hole of adopting the magnetic drives technology, mainly be made of motor joint, magnetic speed device, magnetic supporting joint, it is characterized in that: the power drilling tool upper end is threaded with the top rod column combination by tool joint at the bottom of described a kind of hole of adopting the magnetic drives technology; The axle head of described motor joint, magnetic speed device, magnetic supporting joint connects by bindiny mechanism, and described bindiny mechanism is that spline coupling form or other possess the connected mode of said function;
Described magnetic speed device is comprised of half a coupler and the lower contact of magnetic speed device under half a coupler, the top connection of magnetic speed device, magnetic force axle, magnetic speed device output shaft, soft magnetic bodies, permanent magnet, magnetic speed crust of the device, magnetic bearing, the magnetic speed device on the magnetic speed device;
Described magnetic supporting joint is comprised of the upper half a coupler of magnetic supporting joint, the top connection of magnetic supporting joint, magnetic supporting joint main shaft, outer regulating sleeve, magnetic bearing, inner washer, outer washer, magnetic supporting joint shell and lower lock sleeve.
2. power drilling tool at the bottom of a kind of hole of adopting the magnetic drives technology according to claim 1, it is characterized in that: screw motor, turbine motor or the vane type motor of described motor joint for being driven by drilling mediums such as drilling fluids also comprises and adopts power-actuated electro-motor.
According to claim 1 with 2 described a kind of holes of adopting the magnetic drives technology at the bottom of power drilling tool, it is characterized in that: described motor joint is turbine motor;
Described turbine motor is comprised of half a coupler, motor lower contact under half a coupler, motor spindle, outer regulating sleeve, turbine stator, turbine rotor, magnetic bearing, motor case, the motor on motor top connection, the motor.
4. power drilling tool at the bottom of described a kind of hole of adopting the magnetic drives technology according to claim 1, it is characterized in that: the magnetic force axle of described magnetic speed device is provided with the permanent magnet of some axial settings, described magnetic speed device output shaft is provided with the soft magnetic bodies of some axial settings, described magnetic speed crust of the device is provided with the permanent magnet of some axial settings, described permanent magnet and soft magnetic bodies distribute along even circumferential, magnetic polarity is opposite between the adjacent permanent magnet, and the quantity that changes permanent magnet and soft magnetic bodies can change gearratio.
According to claim 1 with 4 described a kind of holes of adopting the magnetic drives technology at the bottom of power drilling tool, it is characterized in that: all there is the shell protection of Anti-erosion wearing and tearing the outside of described permanent magnet and soft magnetic bodies.
According to claim 1 with 4 described a kind of holes of adopting the magnetic drives technology at the bottom of power drilling tool, it is characterized in that: described magnetic force axle, magnetic speed device output shaft and magnetic speed crust of the device are formed by the non-magnetic material manufacturing.
7. power drilling tool at the bottom of the hole of employing magnetic drives technology according to claim 1, it is characterized in that: described magnetic bearing is comprised of magnetic bearing inner ring and magnetic bearing outer ring, magnetic bearing inner ring and magnetic bearing outer ring all adopt axial charging and magnetizing direction opposite, respectively be provided with the inclined-plane on magnetic bearing inner ring and the magnetic bearing outer ring, mutually corresponding between the inclined-plane, and certain gap is arranged.
8. power drilling tool at the bottom of the hole of employing magnetic drives technology according to claim 7, it is characterized in that: magnetic bearing inner ring and the magnetic bearing outer ring of described magnetic bearing are formed by the permanent-magnet material manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202879185U CN202900039U (en) | 2012-06-19 | 2012-06-19 | Hole bottom power drilling tool adopting magnetic transmission technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202879185U CN202900039U (en) | 2012-06-19 | 2012-06-19 | Hole bottom power drilling tool adopting magnetic transmission technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704833A (en) * | 2012-06-19 | 2012-10-03 | 北京探矿工程研究所 | Hole bottom power drilling tool adopting magnetic transmission technology |
| CN106567673A (en) * | 2015-10-12 | 2017-04-19 | 盐城市华谊石油机械有限公司 | Hydraulic motor assembly with automatic drilling tool abrasion compensation function |
| CN111569694A (en) * | 2020-04-08 | 2020-08-25 | 大连北方分析仪器有限公司 | Stirring device based on magnetic type stirring rod |
| CN112377126A (en) * | 2020-11-30 | 2021-02-19 | 西华大学 | Hydraulic drill feeding tool for horizontal well |
| CN118997685A (en) * | 2024-10-23 | 2024-11-22 | 青岛理工大学 | Self-excited vibration core drill for deep sea carrier |
| RU2841074C1 (en) * | 2024-08-22 | 2025-06-02 | Общество С Ограниченной Ответственностью "Иквэлс" | Downhole device and method of its use for hydraulic fracturing operations |
-
2012
- 2012-06-19 CN CN2012202879185U patent/CN202900039U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704833A (en) * | 2012-06-19 | 2012-10-03 | 北京探矿工程研究所 | Hole bottom power drilling tool adopting magnetic transmission technology |
| CN106567673A (en) * | 2015-10-12 | 2017-04-19 | 盐城市华谊石油机械有限公司 | Hydraulic motor assembly with automatic drilling tool abrasion compensation function |
| CN111569694A (en) * | 2020-04-08 | 2020-08-25 | 大连北方分析仪器有限公司 | Stirring device based on magnetic type stirring rod |
| CN112377126A (en) * | 2020-11-30 | 2021-02-19 | 西华大学 | Hydraulic drill feeding tool for horizontal well |
| RU2841074C1 (en) * | 2024-08-22 | 2025-06-02 | Общество С Ограниченной Ответственностью "Иквэлс" | Downhole device and method of its use for hydraulic fracturing operations |
| CN118997685A (en) * | 2024-10-23 | 2024-11-22 | 青岛理工大学 | Self-excited vibration core drill for deep sea carrier |
| CN118997685B (en) * | 2024-10-23 | 2025-01-24 | 青岛理工大学 | A self-excited vibration coring drill for deep-sea carriers |
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